20043435315352 has 16 divisors (see below), whose sum is σ = 37581790790160. Its totient is φ = 10021624437984.

The previous prime is 20043435315289. The next prime is 20043435315353. The reversal of 20043435315352 is 25351353434002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20043435315353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10734403 + ... + 12462514.

It is an arithmetic number, because the mean of its divisors is an integer number (2348861924385).

Almost surely, 2^{20043435315352} is an apocalyptic number.

It is an amenable number.

20043435315352 is a deficient number, since it is larger than the sum of its proper divisors (17538355474808).

20043435315352 is a wasteful number, since it uses less digits than its factorization.

20043435315352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23304930 (or 23304926 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 40.

Adding to 20043435315352 its reverse (25351353434002), we get a palindrome (45394788749354).

The spelling of 20043435315352 in words is "twenty trillion, forty-three billion, four hundred thirty-five million, three hundred fifteen thousand, three hundred fifty-two".